Stress + Cortisol Support

★★★★★ 2,180 Reviews · 4.9/5

CORTIKILLER®

Stress + cortisol support drink mix. Promotes calm, supports cortisol balance and improves sleep quality — one raspberry stick a day.

  • Lower cortisol & calm daily stress
  • Quiet a racing mind & sleep deeper
  • Feel calmer in 90 days — or your money back
🌸 Limited raspberry batch — order now

Select Quantity

1 Pouch
MOST POPULAR 2 Pouches
BEST VALUE 3 Pouches

One pouch is a 25-day supply. We recommend 2–3 months of daily use for best results.

€55,00
90-Day Money-Back Guarantee — not calmer? Full refund, no questions asked.

🔒 Secure checkout · Free shipping on orders over €60

★★★★★

"The first thing that's actually helped me switch off at night — calmer days, deeper sleep, no grogginess."

Jordan R. — Verified Customer

Clinically Dosed
Third-Party Tested
Feel Calmer in Weeks
Free Shipping €60+
Made in EU
🌿 LOWER CORTISOL🧘 STAY CALM🌙 SLEEP BETTER☀️ BALANCED MOOD🧬 CLINICALLY DOSED✓ THIRD-PARTY TESTED 🌿 LOWER CORTISOL🧘 STAY CALM🌙 SLEEP BETTER☀️ BALANCED MOOD🧬 CLINICALLY DOSED✓ THIRD-PARTY TESTED

Who It's For

Is This For You?

If you check any of these boxes — CORTIKILLER was made for you:

  • Ashwagandha Extract — 600 mg
  • L-Theanine — 200 mg
  • Magnesium Glycinate — 200 mg
  • Phosphatidylserine — 100 mg
  • Vitamin B6 — 10 mg
CORTIKILLER®

Simple Routine

How It Works

01

Mix 1 Stick Daily

Stir one raspberry stick into cold water — anytime you need to unwind, or 30–60 minutes before bed.

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02

Relax & Let It Work

The adaptogen blend does the work — lowering cortisol, easing tension and calming a busy mind.

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03

Feel the Difference

Most people feel calmer within days, with cortisol and sleep benefits building over 2–4 weeks — or your money back.

Why CORTIKILLER

4 Reasons You Need CORTIKILLER

Everyday stress keeps cortisol high. CORTIKILLER targets the root causes so you feel calm, clear and recovered.

09

Elevated Cortisol

Constant stress keeps cortisol high, leaving you wired, anxious and worn down. Ashwagandha and phosphatidylserine help bring cortisol back into balance.

010

A Mind That Won't Switch Off

Racing thoughts at night wreck your rest. L-theanine and magnesium glycinate calm the nervous system so you can actually unwind.

011

Poor, Restless Sleep

Tossing, turning and waking up groggy? Magnesium glycinate supports deeper, more restorative sleep — without leaving you drowsy the next day.

012

Burnout & Brain Fog

Chronic stress drains focus and mood. A clinically dosed adaptogen blend builds resilience so you feel clear, steady and recovered.

🛡️ 90-Day Money-Back Guarantee

The CORTIKILLER Formula

A Game-Changer for Your Stress & Sleep

CORTIKILLER is the stress support formula built to bring cortisol back into balance. It targets the biggest drivers of everyday stress with clinically dosed, fully disclosed ingredients. No proprietary blends. No fillers. Just the doses proven to work.

🌿
Lower Your CortisolClinically studied ashwagandha and phosphatidylserine help bring stress hormones back into balance.
🍵
Calm, Focused DaysL-theanine and vitamin B6 keep you clear, steady and relaxed — without any drowsiness.
🌙
Sleep DeeperMagnesium glycinate relaxes the body and nervous system for more restorative sleep.
🧠
Build Stress ResiliencePhosphatidylserine blunts the cortisol response so pressure doesn't tip into burnout.
CORTIKILLER®

The Formula

No Proprietary Blends. Just Proven Doses.

Every ingredient is fully disclosed, clinically dosed, and backed by science. We have nothing to hide.

🌿
Ashwagandha Extract600mg
+

A clinically studied adaptogen shown to lower cortisol and help your body adapt to everyday stress.

  • Lowers cortisol
  • Eases stress & tension
  • Supports a calm mood
  • Backed by clinical research
🍵
L-Theanine200mg
+

An amino acid from green tea that promotes relaxed, calm focus — without drowsiness or a crash.

  • Calm, focused energy
  • Reduces nervous tension
  • No drowsiness
  • Supports relaxation
🌙
Magnesium Glycinate200mg
+

A highly absorbable form of magnesium that relaxes the body and nervous system and supports deeper sleep.

  • Promotes relaxation
  • Supports deeper sleep
  • Eases muscle tension
  • Calms the nervous system
🧠
Phosphatidylserine100mg
+

A phospholipid shown to blunt the cortisol response to stress and support mental clarity under pressure.

  • Blunts cortisol spikes
  • Builds stress resilience
  • Sharpens mental clarity
  • Helps prevent burnout
☀️
Vitamin B610mg
+

Supports healthy neurotransmitter and mood balance, helping your body manage stress and fatigue.

  • Supports mood balance
  • Aids neurotransmitter production
  • Reduces fatigue
  • Supports the nervous system

Built for Results

CORTIKILLER: Built to Calm

This isn't a magic fix — managing stress is a daily practice. But if you're ready to feel calmer, sleep better and recover from chronic stress, CORTIKILLER will:

  • Lower Your Cortisol: Calm the stress response and steady your mood all day
  • Quiet Your Mind: Ease racing thoughts so you can actually switch off
  • Sleep & Recover: Fall asleep faster and wake up genuinely rested

🛡️ 90-Day Money-Back Guarantee

100K+Calmer Days
4.9★Avg Rating
2-4 WksTo Full Effect
90-DayGuarantee

Real Results

People Who Found Their Calm

★★★★★ 4.9 from 2,180 reviews
SL
Sarah L.✓ Verified Purchase
★★★★★

"By the second week my racing thoughts at night finally quieted down. I fall asleep faster and wake up actually rested."

CORTIKILLER · 3-month user

MT
Marcus T.✓ Verified Purchase
★★★★★

"I used to feel wired and on edge by mid-afternoon. One raspberry stick in the morning and I stay calm and focused all day. Nothing else has come close."

CORTIKILLER · 2-month user

PD
Priya D.✓ Verified Purchase
★★★★★

"Subscribed after the first pouch. The ashwagandha and magnesium combo is a game changer for my sleep and stress — and the raspberry actually tastes good."

CORTIKILLER · Subscriber

🛡️

Zero Risk

90-Day Money-Back Guarantee

Try CORTIKILLER for a full 90 days. Take one stick daily and let the adaptogens build. If you don't feel calmer, less stressed and better rested — email us. We'll refund every cent. No hoops. No questions asked.

Free shipping on orders over €60 · Cancel anytime

Got Questions

Straight Answers

CORTIKILLER is a stress + cortisol support drink mix designed to promote calm, support healthy cortisol balance and improve sleep quality — using five fully disclosed, clinically dosed ingredients.
Mix one raspberry stick pack into cold water once a day. Take it whenever you need to unwind, or 30–60 minutes before bed to support better sleep.
No. CORTIKILLER is designed to promote calm without sedation. L-theanine supports relaxed, clear focus, so you can take it during the day without feeling foggy.
Many people feel calmer, steadier energy within the first few days. Ashwagandha's cortisol and sleep benefits build over 2–4 weeks of consistent daily use.
We offer a 90-day money-back guarantee. If you don't feel calmer and better rested after 90 days of consistent use, email us for a full refund. No questions asked.
CORTIKILLER®
CORTIKILLER®
€55,00
★★★★★ 4.9